paragonite
/ˈparəɡənʌɪt/Mineralogy
noun
A mineral of the mica group which differs from muscovite in containing sodium rather than potassium.
Origin
Mid 19th century; earliest use found in James Nicol (1810–1879), geologist. From German Paragonit from ancient Greek παράγων leading aside or astray, misleading, present participle of παράγειν to lead astray + German -it.